#3540AF#3540AF

#3540AF is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.5% C 0.175 H 272.4°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#3540AF
RGB	rgb(53, 64, 175)
HSL	hsl(235, 54%, 45%)
HSV	hsv(235, 70%, 69%)
CMYK	cmyk(69.7%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(32.96, 32.91, -60.50)
CIE-LCH	lch(32.96, 68.87, 298.54°)
OKLab	oklab(43.52% 0.0074 -0.1746)
OKLCH	oklch(43.52% 0.175 272.4)
XYZ	xyz(11.0369, 7.5178, 41.4186)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3540AF #AFA435

analogous

#357DAF #3540AF #6735AF

triadic

#3540AF #AF3540 #40AF35

tetradic

#3540AF #AF357D #AFA435 #35AF67

square

#3540AF #AF357D #AFA435 #35AF67

split-complementary

#3540AF #AF6735 #7DAF35

monochromatic

#191E51 #272F80 #3540AF #5660CC #858CDA

Accessibility & contrast

On white

8.39

#3540AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3540AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3540AF

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3540AF	#FFFFFF	#000000	##FFFFFF
##3540AF	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B3

Deuteranopia (green-blind)

#0048AD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3540af;
/* rgb */ color: rgb(53, 64, 175);
/* oklch */ color: oklch(43.5% 0.175 272.4);

Tailwind

colors: {
  custom: {
    50: '#7c75c8',
    500: '#3540af',
    950: '#000000',
  },
}

SCSS

$custom: #3540af;
$custom-light: #7c75c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3540af",
  "rgb": {
    "r": 53,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 234.59,
    "s": 53.509,
    "l": 44.706
  },
  "oklch": {
    "l": 0.43524,
    "c": 0.1748,
    "h": 272.4
  },
  "luminance": 0.07519
}

Semantic roles & 50–950 ramp

primary

#3540AF

secondary

#C4BD7C

accent

#D04BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3540AF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →